How to change chart styles in wpf window project

i am new in wpf.i design a chart in wpf with the help of this link
http://www.c-sharpcorner.com/UploadFile/mahesh/WPFCharting11272009153918PM/WPFCharting.aspx..

now i have some question regarding charts:
How can i give chart style?
How can give Grid.column background color red while grid background is Black?
How can i change Chart Bar color?
How can i remove right picture(that describe about chart) of any chart..
 Please reply soon....